CN118079558A - Bacterial filtering device for medical vacuum negative pressure unit - Google Patents
Bacterial filtering device for medical vacuum negative pressure unit Download PDFInfo
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- CN118079558A CN118079558A CN202410463193.8A CN202410463193A CN118079558A CN 118079558 A CN118079558 A CN 118079558A CN 202410463193 A CN202410463193 A CN 202410463193A CN 118079558 A CN118079558 A CN 118079558A
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- 230000001580 bacterial effect Effects 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 title abstract description 52
- 238000004140 cleaning Methods 0.000 claims abstract description 47
- 239000000428 dust Substances 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 23
- 239000002699 waste material Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 12
- 230000001954 sterilising effect Effects 0.000 claims description 9
- 238000007790 scraping Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 abstract description 21
- 239000002245 particle Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 7
- 238000009395 breeding Methods 0.000 abstract description 6
- 230000001488 breeding effect Effects 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 6
- 208000015181 infectious disease Diseases 0.000 abstract description 4
- 208000003322 Coinfection Diseases 0.000 abstract description 3
- 206010011409 Cross infection Diseases 0.000 abstract description 3
- 208000001840 Dandruff Diseases 0.000 abstract description 3
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000003749 cleanliness Effects 0.000 abstract description 2
- 239000012535 impurity Substances 0.000 description 13
- 230000009471 action Effects 0.000 description 9
- 238000009825 accumulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 244000144992 flock Species 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a bacterial filtering device for a medical vacuum negative pressure unit, and particularly relates to the technical field of medical supplies. According to the bacterial filtering device for the medical vacuum negative pressure unit, large-particle sundries such as dust and scurf are filtered through the primary filtering structure, small-particle sundries such as bacteria and spray are filtered through the secondary filtering structure, the filter material is cleaned through the cooperation of the cleaning driving structure, the secondary filtering structure and the primary filtering structure, the service life of the filter material is prolonged, the air inlet rate is ensured, the breeding of bacteria is reduced, and therefore the cleanliness and sanitation of the output air of the negative pressure machine are improved, and cross and secondary infection of patients are avoided.
Description
Technical Field
The invention relates to the technical field of medical supplies, in particular to a bacterial filtering device for a medical vacuum negative pressure unit.
Background
The medical vacuum negative pressure unit is an essential device for hospitals. The device runs efficiently and stably, ensures accurate control of negative pressure in the operation process, maintains clear operation field and reduces infection risk. Meanwhile, the unit is also applied to ward ventilation, so that bacterial breeding is effectively reduced, and the rehabilitation environment of a patient is improved.
The human body can continuously discharge bacteria through the respiratory tract, the digestive tract, the skin, the hair and other ways. The bacteria can suspend in the air by carriers such as spray and dust, and when the ward or the operation process negative pressure machine ventilates an operating room or the ward, the spray and dust doped with the bacteria can be sucked into the negative pressure machine to participate in circulation, and if the bacteria are not treated, the air in the ward or the operating room can be polluted, so that the recovery efficiency of a patient is affected;
Traditional negative pressure machine only relies on the filter screen to filter the processing of bacterium, and the filter screen can be blocked by dust, impurity and thereby the filter screen surface can breech a large amount of bacterium and lead to the bacterium content to increase in the air-out under long-term operation, is unfavorable for patient's recovery.
Disclosure of Invention
The invention mainly aims to provide a bacterial filtering device for a medical vacuum negative pressure unit, which can effectively solve the problems that a filter screen is blocked and the air outlet quality is affected due to poor filtering effects of dust, bacteria and the like of a traditional medical vacuum negative pressure machine.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The utility model provides a medical vacuum is bacterial filter equipment for negative pressure unit, includes the shell, shell internal surface upper portion threaded connection has seal assembly, symmetrical fixedly connected with division board about the shell internal surface, shell inner chamber diapire and the division board lower extreme that is located the lower part sliding connection have the dust collection box with the surface intercommunication jointly, two the one end that the division board is close to each other is provided with clean drive structure jointly with the shell internal surface, clean drive structure inner chamber diapire is provided with primary filter structure, clean drive structure inner chamber diapire annular distribution is provided with secondary filter structure.
Preferably, the sealing assembly comprises a sealing cover in threaded connection with the upper part of the inner surface of the shell, the lower end of the sealing cover is fixedly connected with a sealing ring which is clung to the upper end of the partition plate positioned at the upper part, the upper end of the sealing cover is fixedly connected with an air outlet pipe which is communicated with the top wall of the inner surface of the sealing cover, and the upper end of the partition plate positioned at the upper part is fixedly connected with an air inlet pipe which penetrates through the inner cavity of the sealing cover and extends to the upper end of the sealing cover.
Preferably, the cleaning driving structure comprises an outer gear ring II which is rotationally connected with the upper part of the inner surface of the shell, three gears III which are rotationally connected with the lower end of the partition plate are annularly distributed and meshed with the inner surface of the outer gear ring II, a plurality of connecting rods are annularly distributed and fixedly connected with the lower end of the outer gear ring II, an outer gear ring I which is rotationally connected with the inner surface of the shell is fixedly connected with the lower end of the connecting rods, three gears II are annularly distributed and meshed with the inner surface of the outer gear ring I, gears IV are jointly meshed with the inner surface of the gears II, and a plurality of planet carriers which are fixedly connected with the partition plate positioned at the lower part are jointly rotationally connected with the lower end of the gears II.
Preferably, the primary filtering structure comprises a wind wheel rotationally connected with the lower part of the inner surface of the air inlet pipe, a second filtering barrel rotationally connected with the lower end of the partition plate positioned on the upper part is rotationally connected with the lower part of the outer surface of the wind wheel, a second filtering net is arranged on the outer surface of the filtering barrel, a primary cleaning assembly tightly attached to the inner surface of the second filtering net is fixedly connected with the lower end of the wind wheel, a toothed ring is fixedly connected with the upper part of the inner surface of the second filtering barrel, an inclined panel is fixedly connected with the bottom wall of the inner surface of the second filtering barrel, and a waste pipe I penetrating through the bottom wall of the inner cavity of the second filtering barrel, the upper end of the fourth gear and the upper end of the partition plate and extending to the lower end of the partition plate and communicating with the inner cavity of the dust collecting box is rotationally connected with the lower end of the partition plate.
Preferably, the primary cleaning assembly comprises a second connecting shaft fixedly connected with the lower end of the wind wheel, support rods are symmetrically and fixedly connected to the upper portion and the lower portion of the outer surface of the connecting shaft, one ends, close to each other, of the support rods on the same side are jointly connected with a hairbrush in a rotating mode, the upper ends of the hairbrushes penetrate through the lower ends of the support rods located on the upper portion and extend to the upper ends of the support rods, gears are fixedly connected with the first connecting shaft, the first gears are meshed with the toothed ring, and the lower portion of the outer surface of the connecting shaft is fixedly connected with the inner surface of the fourth gear.
Preferably, the primary cleaning assembly further comprises a discharging hole symmetrically formed in the lower portion of the outer surface of the connecting shaft and communicated with an inner cavity of the waste pipe, and a scraping plate clung to the surface of the inclined panel is fixedly connected to the outer surface of the connecting shaft on one side, far away from the rotation direction, of the discharging hole.
Preferably, the secondary filtering structure comprises a first filtering barrel fixedly connected with the upper end of the gear II, a first filtering net is arranged on the outer surface of the first filtering barrel, the upper end of the first filtering barrel is rotationally connected with the gear III, a fan is fixedly connected with the inner surface of the gear III, a capillary hole supporting component fixedly connected with the planet carrier is rotationally connected with the bottom wall of an inner cavity of the filtering barrel, and a secondary cleaning component fixedly connected with two separation plates is arranged on one side, close to the capillary hole supporting component, of the outer surface of the first filtering net.
Preferably, the capillary hole supporting component comprises a first connecting shaft fixedly connected with the planet carrier, the upper end of the first connecting shaft penetrates through the lower end of the second adjacent gear and extends to an inner cavity of the filter vat, a placement plate is fixedly connected with the inner cavity of the filter vat, one end of the placement plate, which is close to the fan, is in linear distribution rotation, a plurality of pulleys are connected, one side, which is close to the fan, of the lower portion of the outer surface of the first connecting shaft is fixedly connected with a second connecting pipe, a vent hole communicated with the second connecting pipe is formed in the upper end of the first connecting shaft, and isolation cotton is fixedly connected to the connecting part of the second connecting pipe, which is communicated with the fan.
Preferably, the secondary cleaning assembly comprises a fixed plate fixedly connected with two partition plates, one end of the fixed plate, which is close to the fan on the same side, is fixedly connected with a cleaning cover which is equal to the fan in height, the inner surface of the cleaning cover is fixedly connected with an ultraviolet sterilizing lamp in bilateral symmetry, a dust collection chamber is arranged in the middle of the inner surface of the cleaning cover, the lower end of the dust collection chamber is fixedly connected with a first connecting pipe communicated with the inner cavity of the dust collection chamber, the middle of the outer surface of the first connecting pipe is fixedly connected with a second connecting pipe on the same side, and the lower end of the vent hole penetrates through the upper end of the partition plate positioned at the lower part to extend to the lower end of the partition plate and is communicated with the inner cavity of the dust collection box.
Preferably, the maximum radius of the placement plate is larger than the inner diameter of the second filter screen, and the pulley is tightly attached to the inner surface of the second filter screen.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, large-particle sundries such as dust and scurf are filtered through the primary filtering structure, small-particle sundries such as bacteria and spray are filtered through the secondary filtering structure, then the filter materials are cleaned through the cooperation of the cleaning driving structure, the secondary filtering structure and the primary filtering structure, the service life of the filter materials is prolonged, the air inlet rate is ensured, and the breeding of bacteria is reduced, so that the cleanliness and sanitation of the output air of the negative pressure machine are improved, and the cross and secondary infection of patients are avoided.
According to the invention, the second filter screen is used for filtering large-particle impurities such as dust, dander and flock, and the brush in the primary cleaning assembly is driven by the wind wheel to clean the inner surface of the second filter screen, so that the accumulation of dirt on the inner wall of the second filter screen is reduced, and the reduction of air inlet quantity caused by the blockage of the second mesh of the filter screen by impurities during long-term operation is avoided, and the operation of the negative pressure machine is influenced; meanwhile, the second connecting shaft is matched with the scraping plate and the discharging hole to convey the cleaned impurities into the dust collecting box for storage through the first waste material pipe, so that bacterial breeding is reduced.
According to the invention, the fan is driven to rotate by the cooperation of the gear IV and the gear II when air is introduced, so that negative pressure is formed in the filter barrel I and matched with the suction force of the medical vacuum negative pressure machine, the air flow in the shell is driven to enter the secondary filter structure, small particulate matters such as bacteria, microorganisms and droplets in the air are filtered out, the surface of the filter screen is continuously cleaned and sterilized by the cooperation of the capillary pore supporting component and the secondary cleaning component, bacterial accumulation on the surface of the filter screen is reduced, the bacterial content in the air is reduced, and the purity of the air output by the medical vacuum negative pressure machine is improved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the internal structure of the present invention;
FIG. 3 is a schematic view of a cleaning drive structure according to the present invention;
FIG. 4 is a schematic view of a primary filter structure according to the present invention;
FIG. 5 is a schematic cross-sectional view of the internal structure of the primary filter structure of the present invention;
FIG. 6 is an enlarged schematic view of the partial structure of FIG. 5A according to the present invention;
FIG. 7 is a schematic diagram showing the connection relationship between the first waste pipe and the dust box;
FIG. 8 is a schematic view of a secondary filter structure of the present invention;
FIG. 9 is a schematic cross-sectional view of the internal structure of the secondary filter structure of the present invention;
FIG. 10 is a schematic view of a secondary cleaning assembly and capillary support assembly according to the present invention;
FIG. 11 is a schematic cross-sectional view of a secondary cleaning assembly and capillary support assembly according to the present invention;
Fig. 12 is an enlarged schematic view of a partial structure at B in fig. 11 according to the present invention.
In the figure: 1. a seal assembly; 11. sealing cover; 12. an air outlet pipe; 13. a seal ring; 2. a secondary filtering structure; 21. a first filter vat; 22. a secondary cleaning assembly; 221. a fixing plate; 222. a cleaning cover; 223. an ultraviolet germicidal lamp; 224. a dust collection chamber; 225. a first connecting pipe; 23. capillary hole supporting components; 231. a first connecting shaft; 232. a setting plate; 233. a pulley; 234. a second connecting pipe; 235. a vent hole; 236. isolation cotton; 24. a fan; 25. a first filter screen; 3. a housing; 4. a dust collection box; 5. an air inlet pipe; 6. a primary filtering structure; 61. a wind wheel; 62. a primary cleaning assembly; 621. a second connecting shaft; 622. a support rod; 623. a first gear; 624. a brush; 625. a scraper; 626. a discharge hole; 63. a second filtering barrel; 64. a second filter screen; 65. a bevel panel; 66. waste material pipe I; 67. a toothed ring; 7. a cleaning drive structure; 71. a planet carrier; 72. an outer gear ring I; 73. a second gear; 74. a connecting rod; 75. an outer gear ring II; 76. a third gear; 77. a fourth gear; 8. a partition plate.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
As shown in figures 1 and 2, a bacterial filter device for medical vacuum negative pressure unit, including shell 3, shell 3 internal surface upper portion threaded connection has seal assembly 1, symmetrical fixedly connected with division board 8 about the shell 3 internal surface, the common sliding connection of shell 3 inner chamber diapire and the division board 8 lower extreme that is located the lower part has the dust collection box 4 with the surface intercommunication, the one end that two division boards 8 are close to each other is provided with clean drive structure 7 jointly with shell 3 internal surface, clean drive structure 7 inner chamber diapire is provided with primary filter structure 6, clean drive structure 7 inner chamber diapire annular distribution is provided with secondary filter structure 2.
Specifically, in order to realize the sealing of the housing 3 and to replace the filter media in the housing in the convenient disassembly, referring to fig. 2, the sealing assembly 1 includes a sealing cover 11 screwed to the upper portion of the inner surface of the housing 3, a sealing ring 13 fixedly connected to the lower end of the sealing cover 11 and tightly attached to the upper end of the partition plate 8 located on the upper portion, an air outlet pipe 12 fixedly connected to the upper end of the sealing cover 11 and communicated with the top wall of the inner surface of the sealing cover 11, and an air inlet pipe 5 fixedly connected to the upper end of the partition plate 8 located on the upper portion and extending to the upper end of the sealing cover 11 through the inner cavity of the sealing cover 11.
The sealing ring 13 is a common sealing rubber ring and is used for being tightly attached to the partition plate 8 positioned at the upper part after the sealing cover 11 is screwed, so that the filtered air sent out by the secondary filtering structure 2 can be sent back to the medical negative pressure machine through the air outlet pipe 12.
Further, referring to fig. 3, in order to drive the structure of the cleaning filter materials in the secondary filtering structure 2 and the primary filtering structure 6, the cleaning driving structure 7 includes an outer gear ring two 75 rotatably connected to an upper portion of an inner surface of the housing 3, three gears three 76 rotatably connected to a lower end of the partition plate 8 are annularly meshed with an inner surface of the outer gear ring two 75, a plurality of connecting rods 74 are annularly fixedly connected to a lower end of the outer gear ring two 75, an outer gear ring one 72 rotatably connected to an inner surface of the housing 3 is fixedly connected to a lower end of the plurality of connecting rods 74, three gears two 73 are annularly meshed with an inner surface of the outer gear ring one 72, gears four 77 are commonly meshed with an inner surface of the three gears two 73, and a planet carrier 71 fixedly connected to the partition plate 8 located at a lower portion is rotatably connected to a lower end of the gears four 77.
When the fourth gear 77 rotates under the action of the primary filtering structure 6, the second gear 73 meshed with the fourth gear is driven to rotate, and as the planet carrier 71 is fixed with the partition plate 8 at the bottom, the second gear 73 only rotates, the third gear 73 synchronously drives the first external gear ring 72 to rotate, the first external gear ring 72 and the second external gear ring 75 are connected together through the connecting rod 74, and when the planet carrier 71 rotates, the connecting rod 74 can be synchronously driven to rotate, and the third gear 76 meshed with the connecting rod 74 is driven to rotate.
In the operation process of the embodiment, firstly, the air outlet pipe 12 is connected with the air inlet of the medical vacuum negative pressure machine, the air inlet pipe 5 is connected with the air inlet channel, and the negative pressure generated by the medical vacuum negative pressure machine enables air in a ward to enter the shell 3 through the air inlet pipe 5, and large-particle sundries such as dust, scurf and the like are filtered through the primary filtering structure 6, small-particle sundries such as bacteria, spray and the like are filtered through the secondary filtering structure 2, and then the air is sent into the medical vacuum negative pressure machine through the air outlet pipe 12, and the filter materials are cleaned through the cooperation of the cleaning driving structure 7, the secondary filtering structure 2 and the primary filtering structure 6, so that the service life of the filter materials is prolonged, the air inlet rate is ensured, and the breeding of bacteria is reduced, so that the cleanness and sanitation of the output air of the negative pressure machine are increased, and the cross and secondary infection of patients are avoided.
Example two
According to the embodiment, on the basis of the first embodiment, the second filter screen 64 is utilized to filter sundries with large particles such as dust, dander and batting, and the brush 624 in the primary cleaning assembly 62 is driven to clean the inner surface of the second filter screen 64 through the action of the wind wheel 61, so that the accumulation of dirt on the inner wall of the second filter screen 64 is reduced, and the reduction of air inlet quantity caused by the blockage of the meshes of the second filter screen 64 by sundries during long-term operation is avoided, and the operation of the negative pressure machine is influenced; meanwhile, the cleaned impurities are sent to the dust collection box 4 for storage through the waste material pipe I66 by utilizing the matching of the connecting shaft II 621, the scraping plate 625 and the discharging hole 626, so that bacteria are reduced.
Specifically, in order to realize the preliminary filtration of the air fed into the air inlet pipe 5, referring to fig. 4 and 5, the primary filtering structure 6 includes a wind wheel 61 rotatably connected to the lower portion of the inner surface of the air inlet pipe 5, a second filtering barrel 63 rotatably connected to the lower end of the partition plate 8 located at the upper portion is rotatably connected to the lower portion of the outer surface of the wind wheel 61, a second filtering net 64 is provided on the outer surface of the second filtering barrel 63, a primary cleaning component 62 tightly attached to the inner surface of the second filtering net 64 is fixedly connected to the lower end of the wind wheel 61, a toothed ring 67 is fixedly connected to the upper portion of the inner surface of the second filtering barrel 63, a bevel board 65 is fixedly connected to the bottom wall of the inner surface of the second filtering barrel 63, and a waste pipe 66 penetrating through the bottom wall of the inner cavity of the second filtering barrel 63, the upper end of the fourth gear 77 and the upper end of the partition plate 8 extends to the lower end of the partition plate 8 and is communicated with the inner cavity of the dust collecting box 4 is rotatably connected to the lower end of the partition plate 8.
Air enters the second filter barrel 63 through the air inlet pipe 5, the air flow drives the wind wheel 61 to rotate and drives the primary cleaning component 62 to rotate in the second filter barrel 63, the air enters the inner cavity of the shell 3 through the second filter screen 64 in the inner cavity of the second filter barrel 63, and meanwhile, sundries with large particles such as dust, dander and flock in the air are intercepted and remained on the inner wall of the second filter screen 64 under the action of the second filter screen 64.
Further, in order to avoid the influence of the inner wall of the second filter screen 64 covered by dirt to the air intake when the second filter screen runs for a long time, referring to fig. 5, 6 and 7, the primary cleaning assembly 62 comprises a second connecting shaft 621 fixedly connected with the lower end of the wind wheel 61, the upper part and the lower part of the outer surface of the second connecting shaft 621 are symmetrically and fixedly connected with supporting rods 622, one ends of the two supporting rods 622 on the same side, which are close to each other, are jointly rotated and connected with hairbrushes 624, the upper ends of the two hairbrushes 624 penetrate through the lower ends of the supporting rods 622 positioned on the upper part and extend to the upper ends of the supporting rods 622 and are fixedly connected with first gears 623, the first gears 623 are meshed with toothed rings 67, and the lower part of the outer surface of the second connecting shaft 621 is fixedly connected with the inner surfaces of the fourth gears 77.
Under the action of the wind wheel 61, the connecting shaft two 621 rotates and drives the supporting rod 622 fixed on the connecting shaft two 621 to rotate, the brush 624 rotating on the supporting rod 622 is tightly attached to the inner wall of the filter screen two 64, when the connecting shaft two 621 rotates, the gear one 623 fixedly connected on the brush 624 is meshed with the toothed ring 67, and the rotation of the gear one 623 is realized by the revolution of the gear one 623 around the connecting shaft two 621, so that the brush 624 is driven to rotate, and impurities attached to the surface of the filter screen two 64 are cleaned and fall on the inclined panel 65 when the brush 624 rotates along the surface of the filter screen two 64, so that the fluxion of the filter screen two 64 is ensured.
Further, in order to achieve this, referring to fig. 6 and 7, the primary cleaning assembly 62 further includes a discharging hole 626 symmetrically formed at a lower portion of an outer surface of the second connecting shaft 621 and communicating with an inner cavity of the first waste pipe 66, and a scraper 625 tightly attached to a surface of the inclined panel 65 is fixedly connected to an outer surface of the second connecting shaft 621 at a side of the discharging hole 626 away from the rotation direction.
When the second connecting shaft 621 rotates, the scraping plate 625 is synchronously driven to rotate, dust on the inclined plate 65 is scraped, impurities can gradually move downwards in the scraping process due to the fact that the inclined plate 65 is a slope, the discharging hole 626 on the second connecting shaft 621 is periodically communicated with the discharging hole 626 on the first waste pipe 66 due to the rotation of the second connecting shaft 621, and at the moment, part of air flow enters the first waste pipe 66 through the discharging hole 626 and carries impurities to enter the first waste pipe 66 through the discharging hole 626 and fall into the dust collecting box 4 for temporary storage.
Example III
According to the embodiment, on the basis of the second embodiment, the fan 24 is driven to rotate when the gear IV 77 and the gear II 73 are matched with each other to enable the filter barrel I21 to form negative pressure to be matched with the suction force of the medical vacuum negative pressure machine, the air flow in the shell 3 is driven to enter the secondary filter structure 2, small particulate matter sundries such as bacteria, microorganisms and spray in the air are filtered out, the surface of the filter screen I25 is continuously cleaned and sterilized through the matching action of the capillary hole supporting component 23 and the secondary cleaning component 22, bacterial accumulation on the surface of the filter screen I25 is reduced, the bacterial content in the air is reduced, and the purity of air output by the medical vacuum negative pressure machine is improved.
Specifically, referring to fig. 8 and 9, in order to guide air in the housing 3 into the first filter vat 21, the secondary filter structure 2 includes the first filter vat 21 fixedly connected with the upper end of the second gear 73, the outer surface of the first filter vat 21 is provided with the first filter screen 25, the upper end of the first filter vat 21 is rotatably connected with the third gear 76, the inner surface of the third gear 76 is fixedly connected with the fan 24, the bottom wall of the inner cavity of the first filter vat 21 is rotatably connected with the capillary hole supporting component 23 fixedly connected with the planet carrier 71, and one side of the outer surface of the first filter screen 25, which is close to the capillary hole supporting component 23, is provided with the secondary cleaning component 22 fixedly connected with the two separation plates 8.
Because fine impurities such as bacteria and the like need to be filtered, the air flow circulation can be influenced due to the small gap of the first filter screen 25, when the third gear 76 rotates, the fan 24 can rotate along with the third gear 76 to form air flow, the air force of the fan 24 can extract air which is primarily filtered by the primary filtering structure 6 in the shell 3 through the first filter screen 25, the air can be pressed into the first filter barrel 21 under the negative pressure generated by an external medical vacuum negative pressure machine and the action of the air flow of the fan 24, and the fine impurities such as bacteria and the like in the air can be blocked outside by the first filter screen 25.
Further, in order to cooperate with the secondary cleaning assembly 22 to sterilize and clean the first filter screen 25, referring to fig. 9, 10, 11 and 12, the capillary hole supporting assembly 23 includes a first connecting shaft 231 fixedly connected with the planet carrier 71, the upper end of the first connecting shaft 231 extends to the inner cavity of the first filter vat 21 through the lower end of the second adjacent gear 73 and is fixedly connected with a positioning plate 232, one end of the positioning plate 232 close to the fan 24 is linearly and rotatably connected with a plurality of pulleys 233, one side, close to the fan 24, of the lower portion of the outer surface of the first connecting shaft 231 is fixedly connected with a second connecting pipe 234, a vent hole 235 communicated with the second connecting pipe 234 is formed in the upper end of the first connecting shaft 231, the connecting part, which is communicated with the fan 24, of the second connecting pipe 234 is fixedly connected with an isolation cotton 236, the maximum radius of the positioning plate 232 is larger than the inner diameter of the second filter screen 64, and the pulleys 233 are closely attached to the inner surface of the second filter screen 64.
The fourth gear 77 rotates under the action of the wind wheel 61 to drive the second gear 73 meshed with the fourth gear to rotate, and the second gear 73 is fixed with the first filter vat 21, and the second gear 73 rotates to synchronously drive the first filter vat 21 and the first filter vat 25 to rotate, but the first connecting shaft 231 is fixed with the planet carrier 71, so that the first filter vat 25 is lifted by the pulley 233 on the fixed side, and pores of the first filter vat 25 are opened.
Further, in order to clean and kill the surface and internal impurities of the first filter screen 25, referring to fig. 9, 10,11 and 12, the secondary cleaning assembly 22 includes a fixing plate 221 fixedly connected with the two partition plates 8, one end of the fixing plate 221 close to the fan 24 on the same side is fixedly connected with a cleaning cover 222 with the same height as the fan 24, the inner surface of the cleaning cover 222 is fixedly connected with an ultraviolet sterilizing lamp 223 in bilateral symmetry, a dust collection chamber 224 is provided in the middle of the inner surface of the cleaning cover 222, the lower end of the dust collection chamber 224 is fixedly connected with a first connecting pipe 225 communicated with the inner cavity of the cleaning chamber, the middle of the outer surface of the first connecting pipe 225 is fixedly connected with a second connecting pipe 234 on the same side, and the lower end of the vent hole 235 penetrates through the upper end of the partition plate 8 positioned at the lower part to the lower end of the partition plate 8 and is communicated with the inner cavity of the dust collection box 4.
The capillary holes of the first filter screen 25 are positioned in the range of the dust collection chamber 224 and are closely attached to the dust collection chamber 224, the middle part of a first connecting pipe 225 communicated with the lower part of the dust collection chamber 224 is synchronously communicated with a second connecting pipe 234, meanwhile, the second connecting pipe 234 is communicated with the top end of a first connecting shaft 231 through a vent hole 235, the first filter screen 25 is positioned in the range of the fan 24 and continuously provides traction airflow for the interior of the dust collection chamber 224 through the fan 24, the capillary holes of the first filter screen 25 are expanded outwards under the action of a pulley 233, the internal suction force is smaller than the external suction force, micro impurities such as bacteria in the capillary holes can enter the first connecting pipe 225 under the suction action of the first connecting pipe 225, and meanwhile, the micro impurities cannot enter the second connecting pipe 234 due to the blocking of an isolation cotton 236 and continuously fall into the dust collection box 4 along the first connecting pipe 225 for temporary storage;
Meanwhile, the ultraviolet sterilizing lamps 223 fixed at both sides of the cleaning cover 222 sterilize the surface of the first filter screen 25 to avoid bacteria breeding on the surface of the first filter screen 25, and it is required to be specifically stated that the ultraviolet sterilizing lamps 223 are common sterilizing lamps in modern life, and the basic principle of ultraviolet sterilization is utilized to sterilize and disinfect, so that the invention is a common sterilizing means, and only the sterilizing function is utilized, and the internal structure, the specific principle and the power supply mode are not described in detail.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a medical vacuum is bacterial filter equipment for negative pressure unit, includes shell (3), its characterized in that: the utility model discloses a dust collection device, including shell (3) internal surface, shell (3) internal surface upper portion threaded connection has seal assembly (1), symmetry fixedly connected with division board (8) about shell (3) internal surface, the inner chamber diapire of shell (3) and be located division board (8) lower extreme of lower part common sliding connection have dust collection box (4) with the surface intercommunication, two the one end that division board (8) are close to each other is provided with clean drive structure (7) jointly with shell (3) internal surface, clean drive structure (7) inner chamber diapire is provided with primary filter structure (6), clean drive structure (7) inner chamber diapire annular distribution is provided with secondary filter structure (2).
2. The bacterial filter device for a medical vacuum negative pressure unit according to claim 1, wherein: sealing component (1) including with shell (3) upper portion threaded connection's sealed lid (11), sealed lid (11) lower extreme fixedly connected with and be located sealing washer (13) that division board (8) upper end on upper portion hugged closely, sealed lid (11) upper end fixedly connected with and air-out pipe (12) of sealed lid (11) internal surface roof intercommunication, be located upper division board (8) upper end fixedly connected with run through sealed lid (11) inner chamber and extend to air-supply pipe (5) of sealed lid (11) upper end.
3. The bacterial filter device for a medical vacuum negative pressure unit according to claim 1, wherein: the cleaning driving structure (7) comprises an outer gear II (75) which is rotationally connected with the upper portion of the inner surface of the shell (3), three gears III (76) which are rotationally connected with the lower end of the partition plate (8) are annularly and meshed with the inner surface of the outer gear II (75), a plurality of connecting rods (74) are annularly and fixedly connected with the lower end of the outer gear II (75), an outer gear I (72) which is rotationally connected with the inner surface of the shell (3) is fixedly connected with the lower end of the connecting rods (74), three gears II (73) are annularly and fixedly meshed with the inner surface of the outer gear I (72), gears IV (77) are jointly meshed with the inner surface of the gears II (73), and a plurality of planetary carriers (71) which are fixedly connected with the partition plate (8) positioned at the lower portion are jointly rotationally connected with the lower end of the gears IV (77).
4. The bacterial filter device for a medical vacuum negative pressure unit according to claim 1, wherein: the utility model provides a filter structure (6) including wind wheel (61) of being connected with air-supply line (5) internal surface lower part rotation, wind wheel (61) surface lower part rotation is connected with filter vat second (63) of being connected with the division board (8) lower extreme rotation that is located the upper portion, filter vat second (63) surface is provided with filter screen second (64), wind wheel (61) lower extreme fixedly connected with and filter screen second (64) internal surface one-time cleaning component (62) of hugging closely, filter vat second (63) internal surface upper portion fixedly connected with ring gear (67), filter vat second (63) internal surface diapire fixedly connected with inclined plane (65), one-time cleaning component (62) internal surface lower part rotation is connected with waste pipe first (66) that runs through filter vat second (63) inner chamber diapire, gear fourth (77) upper end, division board (8) upper end extend to division board (8) lower extreme and communicate with dust collection box (4) inner chamber.
5. The bacterial filter device for a medical vacuum negative pressure unit according to claim 4, wherein: the primary cleaning assembly (62) comprises a second connecting shaft (621) fixedly connected with the lower end of the wind wheel (61), support rods (622) are fixedly connected to the upper portion and the lower portion of the outer surface of the second connecting shaft (621) in a bilateral symmetry mode, one ends, close to each other, of the support rods (622) on the same side are connected with brushes (624) in a common rotation mode, the upper ends of the brushes (624) penetrate through the lower ends of the support rods (622) on the upper portion and extend to the upper ends of the support rods (622) and are fixedly connected with first gears (623), the first gears (623) are meshed with toothed rings (67), and the lower portion of the outer surface of the second connecting shaft (621) is fixedly connected with the inner surface of a fourth gear (77).
6. The bacterial filter device for a medical vacuum negative pressure unit according to claim 5, wherein: the primary cleaning assembly (62) further comprises a discharging hole (626) which is symmetrically formed in the lower portion of the outer surface of the second connecting shaft (621) and is communicated with the inner cavity of the first waste pipe (66), and a scraping plate (625) which is tightly attached to the surface of the inclined plate (65) is fixedly connected to the outer surface of the second connecting shaft (621) on one side, far away from the rotating direction, of the discharging hole (626).
7. A bacterial filter device for a medical vacuum negative pressure unit according to claim 3, wherein: the secondary filter structure (2) comprises a first filter vat (21) fixedly connected with the upper end of a second gear (73), a first filter screen (25) is arranged on the outer surface of the first filter vat (21), the upper end of the first filter vat (21) is rotationally connected with a third gear (76), a fan (24) is fixedly connected with the inner surface of the third gear (76), a capillary hole supporting component (23) fixedly connected with a planet carrier (71) is rotationally connected with the bottom wall of the inner cavity of the first filter vat (21), and a secondary cleaning component (22) fixedly connected with two separation plates (8) is arranged on one side, close to the capillary hole supporting component (23), of the outer surface of the first filter screen (25).
8. The bacterial filter device for a medical vacuum negative pressure unit according to claim 7, wherein: the capillary hole supporting component (23) comprises a first connecting shaft (231) fixedly connected with the planet carrier (71), the upper end of the first connecting shaft (231) penetrates through the lower end of the second adjacent gear (73) to extend to the inner cavity of the first filter vat (21) and is fixedly connected with a placement plate (232), one end, close to the fan (24), of the placement plate (232) is linearly distributed and rotationally connected with a plurality of pulleys (233), one side, close to the fan (24), of the lower portion of the outer surface of the first connecting shaft (231) is fixedly connected with a second connecting pipe (234), a vent hole (235) communicated with the second connecting pipe (234) is formed in the upper end of the first connecting shaft (231), and isolation cotton (236) is fixedly connected at the joint of the second connecting pipe (234) and the fan (24).
9. The bacterial filter device for a medical vacuum negative pressure unit according to claim 8, wherein: the secondary cleaning assembly (22) comprises a fixing plate (221) fixedly connected with two separation plates (8), one end of the fixing plate (221) close to a fan (24) on the same side is fixedly connected with a cleaning cover (222) which is equal to the fan (24) in height, ultraviolet sterilizing lamps (223) are symmetrically fixedly connected to the inner surface of the cleaning cover (222), a dust collection chamber (224) is formed in the middle of the inner surface of the cleaning cover (222), a first connecting pipe (225) communicated with the inner cavity of the dust collection chamber is fixedly connected to the lower end of the dust collection chamber (224), the middle of the outer surface of the first connecting pipe (225) is fixedly connected with a second connecting pipe (234) on the same side, and the lower end of the vent hole (235) penetrates through the upper end of the separation plate (8) located at the lower portion to the lower end of the separation plate (8) and is communicated with the inner cavity of the dust collection box (4).
10. The bacterial filter device for a medical vacuum negative pressure unit according to claim 8, wherein: the maximum radius of the placement plate (232) is larger than the inner diameter of the second filter screen (64), and the pulley (233) is tightly attached to the inner surface of the second filter screen (64).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410463193.8A CN118079558B (en) | 2024-04-17 | 2024-04-17 | Bacterial filtering device for medical vacuum negative pressure unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410463193.8A CN118079558B (en) | 2024-04-17 | 2024-04-17 | Bacterial filtering device for medical vacuum negative pressure unit |
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| CN118079558B CN118079558B (en) | 2024-07-05 |
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| JP2001038117A (en) * | 1999-07-29 | 2001-02-13 | Akira Toriyama | Dust removing and hazardous gas cracking apparatus |
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| CN216986532U (en) * | 2021-09-03 | 2022-07-19 | 江苏恩创环保科技有限公司 | Folding filter element |
| CN220319797U (en) * | 2023-03-13 | 2024-01-09 | 沈阳科维泵阀有限公司 | Exhaust structure of boiler feed pump |
| CN117427448A (en) * | 2023-12-02 | 2024-01-23 | 江门市创宏环保科技有限公司 | Industrial waste gas high-efficiency treatment device |
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2024
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001038117A (en) * | 1999-07-29 | 2001-02-13 | Akira Toriyama | Dust removing and hazardous gas cracking apparatus |
| US6758874B1 (en) * | 2003-05-09 | 2004-07-06 | John P. Hunter, Jr. | Rotating filter feature for wet/dry vacuum cleaner |
| CN207614515U (en) * | 2017-11-23 | 2018-07-17 | 北京华创公路材料有限公司 | Roof scrubber |
| CN108644041A (en) * | 2018-05-11 | 2018-10-12 | 潍坊学院 | A kind of air cleaner of vehicle engine |
| CN216986532U (en) * | 2021-09-03 | 2022-07-19 | 江苏恩创环保科技有限公司 | Folding filter element |
| CN220319797U (en) * | 2023-03-13 | 2024-01-09 | 沈阳科维泵阀有限公司 | Exhaust structure of boiler feed pump |
| CN117427448A (en) * | 2023-12-02 | 2024-01-23 | 江门市创宏环保科技有限公司 | Industrial waste gas high-efficiency treatment device |
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| CN118079558B (en) | 2024-07-05 |
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